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In this paper, the authors introduce and evaluate ScaleMesh, a scalable miniaturized dual-radio wireless mesh testbed based on IEEE 802.11b/g technology. ScaleMesh can emulate large-scale mesh networks within a miniaturized experimentation area by adaptively shrinking the transmission range of mesh nodes by means of variable signal attenuators. To this end, they derive a theoretical formula for approximating the attenuation level required for downscaling desired network topologies. They conduct a comprehensive performance study, in which they validate the feasibility of ScaleMesh for network emulation and protocol evaluation.
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